Hansen Technologies Auto-Purger. Model: AP-16. S/N: 04773. For multiple purge points, up to 16 points. Ideal for large systems up to 1500 tons (5300 kW) nominal capacity. The AUTO-PURGER is an automatic, electronically-controlled noncondensible gas (air) refrigerant purger for reducing condensing pressure. Inlets: 1/2 in. dia. water line. 1/2 in. dia. high pressure liquid line. 1/2 in. foul gas line from high pressure condensers & receivers. Outlets: 1 in. dia. water drain. 3/4 in. dia. suction line to system. Overall dimensions: 32-1/2 in. L x 22 in. W x 29-1/2 in. H.